package com.sky.service.impl;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.sky.constant.MessageConstant;
import com.sky.dto.UserLoginDTO;
import com.sky.entity.User;
import com.sky.mapper.UserMapper;
import com.sky.properties.WeChatProperties;
import com.sky.service.UserService;
import com.sky.utils.HttpClientUtil;
import io.swagger.util.Json;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import javax.security.auth.login.LoginException;
import java.time.LocalDateTime;
import java.util.HashMap;
import java.util.Map;

@Service
@Slf4j
public class UserServiceImpl implements UserService {

    public static final String WX_LOGIN="https://api.weixin.qq.com/sns/jscode2session";

    @Autowired
    private UserMapper userMapper;
    @Autowired
    private WeChatProperties weChatProperties;
    /**
     * 微信登录
     * @param userLoginDTO
     * @return
     */
    @Override
    public User wxLogin(UserLoginDTO userLoginDTO) throws LoginException {

        String opeanid = getOpeanid(userLoginDTO.getCode());
        if (opeanid == null) {
           throw new LoginException(MessageConstant.LOGIN_FAILED);
        }

        User user = userMapper.getByOpenid(opeanid);
        if (user == null) {
            user = User.builder()
                    .openid(opeanid)
                    .createTime(LocalDateTime.now())
                    .build();
            userMapper.insert(user);
        }
        return user;


    }

    private String getOpeanid(String code){
        Map<String, String> map = new HashMap<>();
        map.put("appid",weChatProperties.getAppid() );
        map.put("secret", weChatProperties.getSecret() );
        map.put("js_code", code);
        map.put("grant_type","authorization_code" );
        String json = HttpClientUtil.doGet(WX_LOGIN, map);
        JSONObject jsonObject =JSON.parseObject(json);
        String openid = jsonObject.getString("openid");
        return openid;
    }
}
